如前所述,对改善栽培植物来说,同源四倍体的利用是受到限制的,多倍体类型研究的第一阶段,通常其特点是降低结实率和生产率。看来,制定消除这些缺点的方法,是试验多倍体的主要问题。从大量实际材料分析中,可以得出结论,大多数情况下,同源多倍体某一水平的结实率是由遗传决定的。自花传粉和异花传粉植物之间,对此有实质的差别。例如,自花传粉的同 As mentioned earlier, the use of autotetraploid is limited to improving cultivated plants. The first phase of the polyploidy type of study, usually characterized by reduced seed setting and productivity, It appears that the development of ways to eliminate these shortcomings is a major issue for testing polyploids. From a large amount of actual material analysis, it can be concluded that in most cases, the seed setting rate at a certain level of the homologous polyploidy is genetically determined. Between self-pollination and cross-pollination of plants, there is a real difference. For example, self-pollination of the same